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Int. J. Environ. Res. Public Health 2012, 9(6), 2020-2030; doi:10.3390/ijerph9062020
Article

Road Dust Lead (Pb) in Two Neighborhoods of Urban Atlanta, (GA, USA)

1,* , 1
 and 1,2
Received: 29 March 2012; in revised form: 25 April 2012 / Accepted: 10 May 2012 / Published: 25 May 2012
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Abstract: Road dust continues to be a major potential reservoir of Pb in the urban environment, and an important potential component of child Pb exposure. This study presents ICP-AES analyses of metals in 72 samples of road dust ( < 250 µm) collected in the urban core of Atlanta, Georgia. In the Downtown area, median Pb concentrations are ~63 mg/kg Pb, with high values of 278 mg/kg. For comparison, median Pb values in a nearby residential neighborhood (also in the urban core) were ~93 mg/kg, with a high of 972 mg/kg. Geospatial variability is high, with significant variation observed over tens to hundreds of meters. Spearman Rank Correlation tests suggest that Pb and other metals (Cu, Ni, V, Zn) are associated with iron and manganese oxide phases in the residential area, as reported in other cities. However, Pb in the Downtown area is not correlated with the others, suggesting a difference in source or transport history. Given these complexities and the expected differences between road dust and soil Pb, future efforts to assess exposure risk should therefore be based on spatially distributed sampling at very high spatial resolution.
Keywords: Pb; geochemistry; geospatial; road dust; children’s health Pb; geochemistry; geospatial; road dust; children’s health
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Deocampo, D.M.; Reed, P.J.; Kalenuik, A.P. Road Dust Lead (Pb) in Two Neighborhoods of Urban Atlanta, (GA, USA). Int. J. Environ. Res. Public Health 2012, 9, 2020-2030.

AMA Style

Deocampo DM, Reed PJ, Kalenuik AP. Road Dust Lead (Pb) in Two Neighborhoods of Urban Atlanta, (GA, USA). International Journal of Environmental Research and Public Health. 2012; 9(6):2020-2030.

Chicago/Turabian Style

Deocampo, Daniel M.; Reed, Phillip Jack; Kalenuik, Alexander P. 2012. "Road Dust Lead (Pb) in Two Neighborhoods of Urban Atlanta, (GA, USA)." Int. J. Environ. Res. Public Health 9, no. 6: 2020-2030.


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